Home / 5,237.45-7,227.71-2,879.61

Finding the Fourth Proportional to 5,237.45, 7,227.71 and 2,879.61

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Solution

The fourth proportional to 5,237.45, 7,227.71 and 2,879.61 is: 3,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.45 : 7,227.71 = 2,879.61 : x
  2. Step 2: Convert to fraction form
    5,237.45/7,227.71 = 2,879.61/x
  3. Step 3: Cross multiply
    5,237.45x = 7,227.71 × 2,879.61
  4. Step 4: Simplify right side
    5,237.45x = 20,812,985.99
  5. Step 5: Solve for x
    x = 20,812,985.99/5,237.45
  6. Step 6: Final answer
    x = 3,973.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.